Boiler



May l2, 1953 K. N. SMITH ETAL 2,638,077

BOILER Filed Aug. 26. 1949 3 Sheets-Sheet 2 IN VEN TOR. Hua usr .L .Oss/vagar May 12, 1953 A K- N' SMTH ETAL 2,638,077

BOILER Filed Aug; 26. 1949 3 Sheets-Sheet 5 INVENTOR. LIE ususr L. Oenafc/r Patented May 12, 1953 lassant? incinta l. -1 K This invention; rrelates to'- steam `looilers\;and ioie "particularly `to a steam boiler utilizing Wasteheat from the exhaust of ianwinternal combustion engineer the like. A main objection?. the inventionis tprovide a riotvelyandy improvedsteam'fboiler operating from; theexhaust heat from an internal.- comhustion engine, said boiler lbeinggsimpler ccnstruction, bei-ng easy, toconnecttoa-conventional internal combustion lenig;ine, and providing Aa great savingin iuel and utilizatiozuct heat which would otherwise-bewasted. o

l `il further yolrn'ect of. theimlrentioz-i-` isftovprovide an Ii-niprofved.steam"coller for use with an i-nternal combustion. enginer said boilerA being inexpensiue to construct,,providingeiiicient util-izationgcf i the, waste. heat, `from the internal-comllustione engine," and providing-a. suppl-y of steam derivednfroma source moilhieat would otherwisebe wasted..

liurtlier objects and'achrantagesi ot thefinvenwill. Beconie apparent from the. fo'llowingfde sfcription. andi claims, andqfrom the accompanying. drawings, whereinl AFigure 1 is, anelevationa-l view, partly yin crosssection showing an improved.- boiler` according fto the. present invention installed in! operati-naposition with :relation toA a plurality of conventional internal combustionfenginesg Figure 2 is la transverse vertical-crossr-fseetionaiview taken through -thewhoiler offlg-urewi, showing oneof the internalgccmzbustion engines inyside, elevation;l i

'y VFigure 3 is aitransverseverticalfcross-sectional viewi taken on line, 3-3- offFi'gure Referring tothe.- dnaw-ings Hl designateswa plurality of conventional internal eomhustiom engine units, such as engines of the diesel type, said iinits` yPim/ing "-xhaiisi:I manifolds shown at l2. Vtithe engine units"liave"^conventional watercooling jackets having inlet conduits I3 and outlet conduits LL The inlet. conduits lil are; connetd throug'h`` resectve valves l 54 to a' water Supply pipel l'Ef, thepipeHfbeiig-connected to a sourceof water supplyrfnotavshown. Theoutn 4 let-conduitsf1lt are connectedi'to a discharge gine il'. Ripe -Il ishconnectedrthnoughvatpurnp ilitoa'lconduit i9. Designatedfatl) isf-a? venti- `cal;k cooling tower containing a vertical discharge l f2 l The structure thus far describedisjconventiong el. The coolir'igwater isA admitted' to the. enginecooling `jackets frompipe LS throughconduits i3 and leaves the engine iacketsthrough-com duits..l.4. The'warmed Water fiiows, through pipe il and VpuinnV Hi` to conduitf 19 passes through formedfwith-lend walls tfl-eafimitlll,l andctarlne'cit-y ing saidiendf walls aref a largel Anumber-of` tubes, 42;.n A End. wall Mi im `formed ywith annular erinv Iamged shell:- portionf M3;1 Secured' to the*l edge' t; shell;` portion: 43 isfa.- circular endi plate Altran;

a-slmsstcs'Y gasket dimming-interposed betweem the -uppenportionf ofcoreifst Ther-an haust manifolds l2 are connected through flexible hose sections 51, valves 58 and thermallyinsulated conduits 52 to the lower conduit 5l in housing 38, said conduits 52 entering the lower Wall portion of boiler shell 24 and having watertight connections therewith. Connected to the upper conduit 5I are respective exhaust conduits 53, leading to the exhaust flue of the engines. The conduits 53 are interconnected by by-pass conduits 54, and the end conduit 53 is connected to a conduit 55 leading to the top Wall portion of shell 43. A damper valve 56 is provided in conduit 55. l

In operation, hollow core 38 is surrounded by the Water in boiler 23. The hot exhaust gases flow upwardly into core 38 from the exhaust manifolds l2 of the engines Il, through conduits 52, and enter conduit 50. The hot gases iiow through conduit 50 to the right, as viewed 'in Figure 1, and enter the space in shell 43. Part of the hot gases ows through the tubes 42 to the space in shell 41 and thence through conduit 5| to the exhaust conduits 53. The remaining portion of the hot gases flows through conduit 55 to said exhaust conduits. The proportion of the gases owing through tubes 42 may be regulated by adjusting the damper 56. By conducting the exhaust gases through conduit 50, tubes 42 and conduit 5l, the exhaust gases are retained in the heat-exchange hollow core 38 for a length of time great enough to allow the gases to give up a substantial amount 'of heat to the water in boiler 23. Due to the relativelyhigh temperature of the exhaust gases, the amount of heattransmitted to the water is great enough to elevate the temperature of the water Ato a suiciently high value to generate steam at a substantial pressure. This steam is available at the outlet conduit 34. The supply of water in boiler 23 is constantly replenished from supply pipe I6 through pipe30 and float valve 32. l While a specic embodiment of a boiler utilizing the exhaust heat of internal combustion engines has been disclosed, it will be understood that various modications within the spirit of the invention mayoccur to those skilled in the art. Therefore, it is intended that .no limitations be placed on the invention except as defined by the scope of the appended claims.

What is claimed is:

l 1.-A boiler comprising a horizontally disposed closed ended hollow cylindrical body, a hollow closedended cylindrical core disposed longitudinally of and within said 'body and spaced from said body, a vertically disposed closed shell arranged exteriorly of each of the closed ends of eol longitudinally through said core adjacent the top thereof and having one end in communication with the other of said vertically disposed shells,.

4 cation with said second conduit for discharging hot gases, a vertically disposed intake pipe positioned within said body adjacent one end thereof and having the lower end spaced from the bottom of said body for introducing water into said body, a third conduit extending vertically from the top of said body intermediate its ends for discharging the steam therefrom, and a bypass conduit positioned exteriorly of said body and having one end connected to one of said outlet conduits and having the other end in communication with the top of said one of the vertically disposed shells.

2. A boiler comprising a horizontally disposed closed ended hollow cylindrical body, a hollow closed ended cylindrical core disposed longitudinally of and within said body and spaced from said body, a vertically disposed closed shell arranged exteriorly ofr each of the closed ends of said core and secured thereto, a plurality of open endedV tubes positioned longitudinally of and within said core and each having the open ends extending through the adjacent closed end of said core and in communication with the adjacent vertically disposed shell, a conduit extending longitudinally through said core adjacent the bottom thereof and having one end in communication with one of said vertically disposed shells, a plurality of spaced inlet conduits extending transversely through said body and in communication with said conduit for receiving hot gases, a second conduit extending longitudinally through said core adjacent the top thereof and having one end in communication with the other of said vertically disposed shells, a plurality oi spaced outlet conduits extending transversely through said body and in communication with said conduit for discharging hot gases, a vertically disposed intake pipe positioned within said body adjacent one end thereof and having the lower end spaced from the bottom of said body for introducing Water into said body, a valve in said intake pipe, a oat member in said body and operatively connected to said valve for controlling the admission of water into said body, a third conduit extending vertically from the top of said body intermediate its ends for discharging the steam therefrom, a bypass conduit positioned exteriorly of said body and having one end connected to one of said outlet conduits and having the other end in communication with the top of said one of the vertically disposed i shells, and an adjustable damper valve in said bypass conduit for regulating the quantity of hot gases being bypassed.

KENNETH N. SMITH AUGUST L. OBERBECK.

References Cited in the le of this patent UNITED STATES PATENTS Number Name Date 152,032 Bates June 16, 1874 vr722,493 Copp Mar. 10, 1903 -'971,296 Meyer Sept. 27, 1910 1,015,145 Davis Jan. 16, 1912 1,217,587 Fulton Feb. 27, 1917 f 1,489,501 Miner, Jr. Apr. 8, 1924 2,051,240 Berryman Aug. 18', 1936 FOREIGN PATENTS I Number Country Date 199,360 Germany June 12, 1908 fj- 329,318.` Germany Nov. 20, 1920 

